Fix apache to work with ngrok

[markmetcalfe]

Describe the bug

Currently if a site is made public via Ngrok, it isn't possible to load it if the apache container is serving requests. Note that Nginx is able to serve Nginx sites fine, and Apache is able to serve a site fine via a local domain.

To Reproduce
Steps to reproduce the behavior:

1. Start apache: tstop nginx && tup apache
2. Serve your site via ngrok - e.g. tngrok integration.totara83
3. Go to the ngrok site URL
4. See that your site doesn't load

Expected behavior
Your Totara site loads as it would normally